2020 ICD-10-CM Diagnosis Code I34.0

Nonrheumatic mitral (valve) insufficiency

    2016 2017 2018 2019 2020 Billable/Specific Code
  • I34.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM I34.0 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of I34.0 - other international versions of ICD-10 I34.0 may differ.
Applicable To
  • Nonrheumatic mitral (valve) incompetence NOS
  • Nonrheumatic mitral (valve) regurgitation NOS
The following code(s) above I34.0 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to I34.0:
  • I00-I99
    2020 ICD-10-CM Range I00-I99

    Diseases of the circulatory system

    Type 2 Excludes
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    • systemic connective tissue disorders (M30-M36)
    • transient cerebral ischemic attacks and related syndromes (G45.-)
    Diseases of the circulatory system
  • I34
    ICD-10-CM Diagnosis Code I34

    Nonrheumatic mitral valve disorders

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • mitral valve disease (I05.9)
    • mitral valve failure (I05.8)
    • mitral valve stenosis (I05.0)
    • mitral valve disorder of unspecified cause with diseases of aortic and/or tricuspid valve(s) (I08.-)
    • mitral valve disorder of unspecified cause with mitral stenosis or obstruction (I05.0)
    • mitral valve disorder specified as congenital (Q23.2, Q23.9)
    • mitral valve disorder specified as rheumatic (I05.-)
    Nonrheumatic mitral valve disorders
Approximate Synonyms
  • Mitral valve regurgitation
  • Non-rheumatic mitral regurgitation
Clinical Information
  • Backflow of blood from the left ventricle into the left atrium due to imperfect closure of the mitral valve. This can lead to mitral valve regurgitation.
  • Backflow of blood from the left ventricle into the left atrium, owing to imperfect functioning of the mitral valve.
  • Blood flows backward because the mitral valve closes improperly
  • Dysfunction of the mitral valve, with incomplete valve closure resulting in valvular regurgitation.
  • The backward flow of blood from the left ventricle into the left atrium, owing to insufficiency of the mitral valve; it may be acute or chronic, usually due to mitral valve prolapse, rheumatic heart disease or a complication of cardiac dilatation.
ICD-10-CM I34.0 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 306 Cardiac congenital and valvular disorders with mcc
  • 307 Cardiac congenital and valvular disorders without mcc

Convert I34.0 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
Code annotations containing back-references to I34.0:
  • Type 1 Excludes: I05.1
    ICD-10-CM Diagnosis Code I05.1

    Rheumatic mitral insufficiency

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Rheumatic mitral incompetence
    • Rheumatic mitral regurgitation
    Type 1 Excludes
    • mitral insufficiency not specified as rheumatic (I34.0)

Diagnosis Index entries containing back-references to I34.0:

ICD-10-CM Codes Adjacent To I34.0
I31.2 Hemopericardium, not elsewhere classified
I31.3 Pericardial effusion (noninflammatory)
I31.4 Cardiac tamponade
I31.8 Other specified diseases of pericardium
I31.9 Disease of pericardium, unspecified
I32 Pericarditis in diseases classified elsewhere
I33 Acute and subacute endocarditis
I33.0 Acute and subacute infective endocarditis
I33.9 Acute and subacute endocarditis, unspecified
I34 Nonrheumatic mitral valve disorders
I34.0 Nonrheumatic mitral (valve) insufficiency
I34.1 Nonrheumatic mitral (valve) prolapse
I34.2 Nonrheumatic mitral (valve) stenosis
I34.8 Other nonrheumatic mitral valve disorders
I34.9 Nonrheumatic mitral valve disorder, unspecified
I35 Nonrheumatic aortic valve disorders
I35.0 Nonrheumatic aortic (valve) stenosis
I35.1 Nonrheumatic aortic (valve) insufficiency
I35.2 Nonrheumatic aortic (valve) stenosis with insufficiency
I35.8 Other nonrheumatic aortic valve disorders
I35.9 Nonrheumatic aortic valve disorder, unspecified

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.